<template>
    <div class="todo-header">
       <input type="text" placeholder="请输入你的任务名称，按回车键确认" v-model="title" @keyup.enter="add" />
    </div>
</template>

<script>
import {nanoid} from 'nanoid'
export default {
    name:'MyHeader',
    data(){
        return {
            title:''
        }
    },
    methods:{
        add() {
        //   console.log({id:nanoid(),title:e.target.value,done:false});
        if(this.title.trim()===''){
            alert('输入不能为空')
            return
        }
          const todoObj = {id:nanoid(),title:this.title,done:false}
          this.addTodo(todoObj)
          this.title = ''
        }
    },
    props:['addTodo']
}
</script>

<style scoped>
/*header*/
.todo-header input {
  width: 560px;
  height: 28px;
  font-size: 14px;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 4px 7px;
}

.todo-header input:focus {
  outline: none;
  border-color: rgba(82, 168, 236, 0.8);
  box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 8px rgba(82, 168, 236, 0.6);
}
</style>